| 摘要 |
<p>There is described a forming unti (1) for producing sealed packages (2) from a tube (3) of sheet packaging material fed along a feed path (A) and filled with a pourable food product. The unit (1) has jaw means (6, 6') acting cyclically on the tube (3) to grip and seal it at equally spaced cross sections defining opposite sealing bands (15) of the packages (2); interacting means (23; 16) interacting with the tube (3) and fitted movably to the jaw means (6, 6'); and actuating means (27; 40) for operating the interacting means (23; 16) and mounted entirely on the jaw means (6, 6').</p> |
